16.The directions for operating this machine were so complex that we could not understand.

分析 操作這臺機器的說明書太復(fù)雜以致于我們都沒看懂.

解答 85.complex  complex是一個形容詞,意為"復(fù)雜的,難懂的",由后一句we could not understand(不能理解)可知,說明書很復(fù)雜難懂(complex),這里還考查so…that…的句型,表示"如此…以致于…",so后面加形容詞,故填complex.

點評 考查形容詞詞義.在熟記單詞詞義基礎(chǔ)上要聯(lián)系語境,從而寫出正確答案.

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